Section 8 · System administration

cyclicdeadline.8

Package: realtime-tests

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CYCLICDEADLINE

cyclicdeadline − This program is used to test the deadline scheduler (SCHED_DEADLINE) using a cyclictest style program

cyclicdeadline [-a [CPUSET]] [-D TIME] [-h] [-i INTV] [—json FILENAME] [-s STEP] [-t NUM] [-q]

cyclicdeadline is a cyclictest style program for testing the deadline scheduler

−a −−affinity [CPUSET]

Comma / hypen separated list of CPUs to run deadline tasks on

−D −−duration TIME

Specify a length for the test to run Append ’m’, ’h’, or ’d’ to specify minutes, hours, or days

−h −−help

Show this help menu

−i −−interval INTV

The shortest deadline for the tasks in us. (default 1000us)

−−json=FILENAME

Write final results into FILENAME, JSON formatted.

−s −−step STEP

The amount to increase the deadline for each task in us. (default 500us)

−t −−threads NUM

The number of threads to run as deadline (default 1)

−q, −−quiet

Print a summary only on exit. Useful for automated tests, where only the summary output needs to be captured.

−b, −−breaktrace=USEC

Send break trace command when latency > USEC

−−tracemark

write a trace mark when −b latency is exceeded.

cyclicdeadline was written by Steven Rostedt <rostedt@goodmis.org>

This manual page was written by John Kacur <jkacur@redhat.com>